There stands the glass

DO YOU SEE THE GLASS AS HALF FULL ?
DO YOU SEE THE GLASS AS HALF EMPTY?
IF YOU THINK LIKE A SCIENTIST ITS ALWAYS FULL.
FULL OF AIR IS GOOD TOO! WE DONT LIVE IN A VACUUM!
IF YOU DO NOT BREATHE YOU WILL DIE!

Can you see the glass for the glass? Thousands and thousands of grains of sand united and clear, keeping you from getting all wet?